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The ratio of primary and secondary turns...

The ratio of primary and secondary turns in a transformer is 3:2, if 30V a.c. is fed to primary, voltage across secondary will be ........

A

15 V

B

45 V

C

90 V

D

300 V

Text Solution

Verified by Experts

The correct Answer is:
B
`N_2/N_1=epsilon_2/epsilon_1`
`therefore epsilon_2=epsilon_1xxN_2/N_1=30xx3/2`
`therefore epsilon_2`= 45 V
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